Add chocolate chips and milk in an oversized mug. Microwave for approximately 30-35 seconds and then immediately stir with a fork until chocolate is completely melted into the milk. If your chocolate does not completely melt, microwave for an additional 15 seconds and mix again. Careful not to heat too long or chocolate may burn or milk will overflow.
Add in flour and baking powder. Stir with a small whisk until batter is smooth. Microwave for 1 minute. Check to make sure middle of cake is cooked with a sharp knife or fork. Let cake cool for about 15 minutes before eating.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.